Container for heavy articles



Oct- 21, 1958 c. D. FAgLERT 2,857,090

coNTANER Foa HEAVY ARTicLEs 2 sheets-sheet 1 Filed June 2, 1955 ywrm/vir Oct. 21, 1958 c. D. FALLER-r CONTAINERv EOE HEAVY ARTICLES 2Sheets-Sheet 2 Filed June 2. 1955 FIGB lilllllllllll, lllltllll, Il,

allllnfilllll Il!!! CONTAINER FOR HEAVY ARTICLES Clifford D. Fallert,St. Louis, Mo., assigner, by mesne assignments, to Crown ZellerbachCorporation, San Francisco, Calif., a corporation of Nevada Application.lune 2, 1955, Serial No. 512,615

1 Claim. (Cl. 229-36) This invention appertains, in general, tocontainers constructed of breboard, paperboard or other suitable,bendable materials and, in particular, to containers formed of solidfibreboard or corrugated breboard. It is often desired to package, forshipment, relatively heavy, dense articles, such as welding rods, wireand other similar material. It is often important, especially withmaterials such as Welding rods, which are coated with substances whichare likely to chip or flake if improperly handled, to provide aninexpensive container which adequately protects the contents from theimpacts of the normal rough handling during shipment. An obviousexpedient would be to provide separate interior reinforcingmembersdesigned to protect the contents. Another expedient would be to providea unitary container structure of complicated design which the user isrequired to expend considerable time to glue, fold and erect. Therefore,it is an object of this invention to provide a reinforced container ofthe type described which has prefolded and preglued portions Whichautomatically extend into end Wall reinforcing position as the containeris erected by the user. Another object of this invention is to provide acontainer of the type described wherein the end wall members arereinforced With up to five thicknesses of material to provide a shockabsorbing, reinforcing structure to protect the contents. Y

A still further object is to provide a container having cornerreinforcing extensions integrally connected to the end walls of thecontainer and having rebent portions which may be pre-secured togetherto form a 2-ply end wall strengthening portion.

The accompanying drawings form a part of this speciiication and likenumerals and symbols herein appearing refer to like parts wherever theyoccur.

Fig. l is a plan View of a blank embodying a preferred form of theinvention; y

Fig. 2 is aperspective View of the blank illustrated in Fig. 1 whereincertain of the end wall reinforcing members are shown glued together;

Fig. 3 is a View of the blank shown and illustrated in Fig. l shown in apartial form of erection;

Fig. 4 is a view of the blank shown in Fig. 1 shown in a still furtherstage of erection;

Fig. 5 is a view of a completed container erected from the blank shownin Fig. 1;

Fig. 6 is a horizontal, sectional view taken along lines 6-6 of Fig. 5;

Fig. 7 is a vertical, sectional View taken along lines 7--7 of Fig. 5;

Fig. 8 is a vertical, sectional view taken along lines 8 8 of Fig. 5;

Fig. 9 is a horizontal, fragmentary, sectional view taken along lines9-9 of Fig. 4; and

Fig. 10 is a horizontal, fragmentary, sectional View taken along lines10-10 of Fig. 3.

A blank A, shown in Fig. l, embodies a preferred form of the inventionand is provided with a bottom panel 11 delined by parallel bottom sidescores 12 and parallel States. Patent G bottom end scores 13.Longitudinal side wall panels 14 are foldably connected to the bottompanel 11 along the bottom side scores 12. Continuations ofthe bottom endscores 13 dene the end margins of the side wall panels 14. v

Top side scores 15 dene the top margins of the side wall panels 14. Arelatively short top ap 16 is foldably connected to one ofthe side wallpanels 14 along the adjacent side Wall score 15. The top ap 16 in theembodiment` illustrated is substantially narrower in width than thewidth of the bottom panel 11, however, the width dimensions of the topap 16 may be varied if desired. The side Wall panel 14, disposedopposite the side wall panel 14, which carries the top flap 16, isprovided with a full width top panel 17 foldably connected thereto alongits top side score 15. VIn the particular embodiment illustrated, thetop panel 17 is preferably equal in width to the bottom panel 11.Continuations of the bottom end scores 13 define the ends of the toppanel 17 and the inner margins of foldably connected outer end aps 18.End wall panels 19 are foldably connected to the bottom panels 11 alongthe bottom end scores 13. A parallel pair of double top scores 20 definethe top margins of the end wall panels 19 and the inner margins offoldably connected end Wall reinforcing panels 21.

' The side wall panels 14 are provided with corner panels scores 23 areformed by slitting or cutting intermittent portions of the end margin ofthe corner panels 22 as illustrated, however, other forms of scoring,such as creasing, may be satisfactorily employed.

Corner reinforcing panels 24 are foldably connected to the corner panels22 along the cut scores 23. CornerI scores 25 dene the outer edge ofthecorner reinforcing panels and the inner edge ofside-wall reinforcingpanels 26. The distance between the cut scores 23 and the corner scores25 will be, in the embodiment illustrated, slightly less than thedistance between the cut score 23 and the adjacent extension of thebottomrend score 13. In this manner, the length of the cornerreinforcing panels 24 is preferably slightly less than the' cornerpanels 22. The reason of .this preferred length relationship will befully described later in the description of the'erected container.

In the particular container blankI illustrated, the actual freeedge .ofthe side Wall reinforcing panel 26 is substantially co-linear with theouter free edgeqof the-ad'-A jacent end wall reinforcing panel 21. Inthis manner, the most effective utilization of the material is assured,

however, the length of the side wall reinforcing panely 26 r may bevaried if desired.

A preferred method of forming the container from the .blank Ais to applyadhesive 27 to they inner face of the vcorner :panels 22 as shown inFigs. -1 and 2; The corner'1 reinforcing panels 24 and the side wallreinforcing panels 26 are then folded upwardly and inwardly about thecut scores 23 so that each corner reinforcing panel 24 is securely andadhesively fixed to its adjacent corner panel 22. If desired, of course,the adjacent panels 22 and 24 may be xed together by means of stitchesor any other suitable securing means.

After the corner panels 22 and 24 are secured together as abovedescribed, each side wall reinforcing panel 26 will be disposed inflatwise, contacting relation to its adjacent side wall panel 14 asshown in Fig. 2. The corner panels 22 and 24 are ordinarily gluedtogether by the manufacturer of the container blank prior to shipment tothe user of the container.

The user of the container may erect the preglued blank Patented Oct. 21,1958 i 3 in any suitable manner, however, a preferred means is to foldthe side wall panels 14 vertically upwardly about the bottom side scores12 into right angular relationship with the bottom panel 11'. j

Each ofjthe glued together corner panels 22 and 24 are folded rightangularly inwardly about their adjacent extension ,of the bottom end score 13. In this position, it will be apparent that the side wallreinforcing panels willbein iirm'contactingrelation with the inner faceof the adjacent portions of the side wall panel 14. With thepanels 22and 24, folded in this position, the end wall panels '19 are .foldedupwardly about their bottom end scores 13,r into vertical atwiserelation against the previously positioned adjacent corner panels 22.AThe end wall reinforcing panels 21 are then folded inwardly andvertiCall-ydownwa'rdly over theA corner reinforcing panels 24. In the.embodiment illustrated, the free outer edge 28 of the endwallreinforcing panels 21 are in firm contacting relationship with.theuplper face of the -bottom panel 11. In this manner, the `frictionalengagement assists in maintaining the end-,wall reinforcing panel invertical position.

The container may then be loaded. To seal the container, the top iiap 16is folded horizontally inwardly about. its adjacent top side score asshown in Fig. 4. The top panel 17 is then folded horizontally inwardlyin overlapping relation with the 4previously positioned ,top ap 16. The'outer end flaps I8 may then be folded vertically downward in contactingrelation with the outer face of the end wall panels 19 and then fixed.in place by adhesive, stitching, or other suitable means. For example,it may be desired to secure the top panel 17 and the outer end flaps 18into position 'by girding means, such as steel strap, wire,.tape or thelike.

The containerr thus provided, and illustrated in completed form yin Fig.S, affords a substantially dust-proof reinforced package for carryingheavy, dense articles. The reinforced corner portions. and end wallportions are proof against failure during transit. As shown in Figs. 6and-7,a multiple thickness reinforcing and cushioning end wallstrnctureis provided, with up to iive layers of material being utilized.Also, as readily apparent from Fig., 9, there are provided reinforcedcorner. structures which are formed by, two continuous plies `ofmaterial thereby affording `at least twice the strength found inordinary containers of this generaltype.

Furthermore, the reinforced. corner structures and side and end wallstructures provide unusual vertical strength which permitscontainersemploying this invention thereby stacked one -upon another.

Not Aonly are .the end walls of the container substantiallyreinforcedbutthe side .wall structure is reinforced by the use 4 of the side wallreinforcing panels 2 6.

cIn the embodiment illustrated, it is important to note that the sidewall reinforcing panels 26 are not adhesively secured to the adjacentinner faces of the side wall panels 14 since as the glued togethercorner panels 22 and 24 arefolded about the extension of the bottom endscore 13 into position,.the side wall reinforcing panel 26 will actuallyslide along the inner face of the adjacent side wall panel 14. Also, asreadily apparent from an examination of Figs. 9 and 10, corner panel 22is of greater length than corner reinforcing panel 24 by an amount atleast equal to the thickness of the material from which the container isconstructed.

It is to be understood that the embodiments herein described areillustrative and not restrictive, and it is also to be understood thatthe invention may be susceptible of embodiment in other modified forms,and that all such 'A modifications which are similar or equivalenthereto come equally within the scope of the claim next appearing.

What I claim is:

A unitary container having a bottom with foldably connected, upstandingside and end walls, and a bottom, a isubstantially similar side wall,corner and end wall reinforcing extension foldably connected to each endof each side wall at substantially a right angle thereto and with theextensions from one side wall extending fori ward and in alignment with`the extensions from the other side wall, each extension includingreversely folded over similar permanently secured together overlappingportions forming part of an end wall structure and a further similarextension at a right angle thereto in free engagement with an adjacentinside portion of the side wall, the overall dimension of all extensionsbeing substantially the same andthe height of all the extensions beingsubstantially the height of the side walls but of lesser length thanth'eside walls, inner and outer end wall panels foldably connectedtogether and integral with the bottom, with the inner panels extendedover the said inside of each folded over end wall structure and with theouter panels extending over and in engagement with the outside of Y eachfolded over wall structure thus resulting in four-ply end walls, oneupstanding side wall having a flat ledge of the outer end wall panels.

zontally inwardly over and with a portion thereof in flatwise contactingrelationship throughout its length with said ledge, said top closureflap having end marginal edges in alignment with said container endwalls and having similar outer end flaps disposed downward and securedin flatwise reinforcing relation to' respective outer faces ReferencesCited in the tile of this patent UNITED STATES PATENTS 1,936,136Lindgren Nov. 21, 1933 1,981,836 Greve Nov. 20, 1934 2,367,008 DavidsonJ an. 9, 1945 2,450,035 De Mian Sept. 28, 1948 2,572,239 Bergstein Oct.23, 1951 FOREIGN PATENTS 4,698 Great Britain 1907

